The 95% Confidence Interval of a Proportion Ranges from 0

Multiple Choice

The 95% confidence interval of a proportion ranges from 0.22 to 0.32. Our null hypothesis was that the sample proportion does not differ from the population proportion (P_u) , which is 0.27. If our research hypothesis is two-tailed, what would we conclude about a sample proportion (P_s) equal to 0.33?

A) The research hypothesis should be rejected.
B) The null hypothesis should not be rejected.
C) The null hypothesis is likely true, but there is a 5% probability that it is actually false.
D) The null hypothesis should be rejected if alpha is set at 0.05.